Solar flares on December 31, 2013
The most powerful solar flare in 24 hours
M6.4 (strong) flare - December 31 at 12:58 PM
Solar activity index
Value as of the end of the day on December 31, 2013
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from December 30, 2013 to December 31, 2013
Time zone — UTC-09 (Hooper Bay)
List of solar flares for December 31, 2013
The total number of solar flares of class C and higher — 8 flares
C class — 7 | M class — 1 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C3.2 | 22:21 | 22:26 | 22:29 | 1940 |
| C2.1 | 21:45 | 21:49 | 21:52 | 1944 |
| M6.4 | 12:45 | 12:58 | 13:20 | 1936 |
| C2.9 | 10:49 | 10:53 | 10:56 | 1940 |
| C4.0 | 09:53 | 09:59 | 10:03 | 1940 |
| C1.8 | 09:20 | 09:25 | 09:31 | 1936 |
| C2.0 | 07:42 | 07:49 | 07:55 | 1938 |
| C8.8 | 01:23 | 02:50 | 03:32 | — |